What month are most babies born?

Answer:
August.

Source: National Center for Health Statistics [http://www.census.gov/Press-Release/www/releases/archives/facts_for_features_special_editions/011633.html]

See also: Summertime Mystery: More Born, Fewer Die in August (ABC News) [http://abcnews.go.com/Health/Science/story?id=945911 ]